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Nobel Prizes awarded for advances in neutrino astronomy and asymmetric synthesis

Francis Halzen, an 82-year-old Belgian astrophysicist, received the 2026 Nobel Prize in Physics for his leadership of the IceCube Neutrino Observatory in Antarctica, which detected high-energy neutrinos from space. The Nobel Prize in Chemistry was jointly awarded to Henri B. Kagan and Kensō Soai for discovering non-linear effects and autocatalysis in asymmetric organic synthesis, techniques widely used in pharmaceutical production.

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The Royal Swedish Academy of Sciences presented the 2026 Nobel Prize in Physics to Francis Halzen, a Belgian astrophysicist at the University of Wisconsin-Madison. The academy recognised his decisive contributions to the IceCube Neutrino Observatory and the discovery of high-energy astrophysical neutrinos. Halzen originally conceived the observatory in 1988, proposing a network of sensors placed deep within Antarctic ice that could detect faint light signals produced when neutrinos collide with atomic nuclei. Speaking at the Nobel news conference from Italy, Halzen reflected on the project's uncertain beginnings, saying, "When we started this project, everybody realized this was maybe a good idea but very few thought it would work, including myself." Mark Pearce, chair of the Nobel committee, praised Halzen's approach, stating that his tenacity and scientific vision had opened the way for a new form of astronomy. The Academy announced the Chemistry Prize the following day, awarding it jointly to Henri B. Kagan of Paris-Saclay University and Kensō Soai of the Tokyo University of Science. They were recognised for their discovery of non-linear effects and autocatalysis in asymmetric organic synthesis, research that has proven valuable across a range of applications, particularly in producing pharmaceuticals and other chiral molecules.

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